Comb-cttttiua machine



BEST AVAILABLE COPY UNITED STATES PATEN T OFFICE.

THOS. W. BILL, OF LEOMINSTER, MASSACHUSETTS.

COME-CUTTING MACHINE.

Speccation of Letters Patent No. 8,144. dated June 10, 1851.

To all whom, it may concern:

Be it known that I, IHouss W'. HILL, of Leominster, in the county of'Worcester and State of Massachusetts, have invented a new and usefulImprovement in Machinery for Cutting Combs from Horn. TortoiseShelL orother Suitable Sheet Material: and I do hereby declare that the same isfully described and represented in 'the following specification andaccompanying drawings. letters. ligures. and references thereof.

Of the said drawings, Figure l. denotes a top view of my improved combcutting machine.t Fig. 2. is a vertical. central. and longitudinalsection of it. Fig. S, is a top view of the frame of interlockingcutters or dies. Fig. 1. is a top view of the two series of interlockingclearers or lifters. and their frame to be hereinafter described.

ln the said drawings A, represents a bed, resting upon a platform B. andhaving a rectangular frame or chase C. fixed firmly upon its uppersurface. Wit-hin the frame or chase C. a. series of cutters or knives islset up. or arranged, as seen at a. a. &c.. in Fig. 3. and are securedin place in any proper manner. These cutters are disposed in such waythat when a sheet of horn. tortoise sheel, or other proper material. islaid on their cutting edges. which are all brought to a level, and suchsheet is pressed down upon the cutters, they will enter. or pass throughthe sheet, and separate it into two combs. the teeth of one of whichwill interlock with those of the other, and may or may not be bottomedat the same time (that is to say when they are cut,) as occasion mayrequire. Surrounding and somewhat raised above the chase or frame C. isanother rectangular frame D. which has a. series of bars b, b. 7), &c,or c. c, c. &c.. extending horizontally and inward from each ot' itsends, as seen in Fig. l. The bars or 'lifters of one series. interlockwith those of the other series, and each bar is made to pass betweensome two of the cutters. by which a tooth of one of the combs is made.and the upper edges of all the said bars when the frame D. is down toits lowest position. should be below the top edges of the cutters, adistance equal to or a. little greater than the thickness of the sheetof material from which the combs are to be struck: and this in order topermit the cutters to freely pass through the sheet, when it is presseddown by the pressure roller E, arranged over or above the cutters. asseen in the drawings. One series ot' levers b. 72. &c. carries one combout of the dies or cutters while the other series c. c. c. ttc. elevatesthe other comb out of the same.

On the shaft e. of the roller E. there is a gear F. which plavs or worksinto a rack y, tixed on the upper surface of the bed A. the said bedbeing so applied to the platform. as to be capable of being easily movedin a straight direction. either backward. or forward. and underneath thepressure roller E. On the other end of the shaft e. there is anothergear h, which works into a third gear z'. iixed on a horizontal shaftlr, the said two shafts e, and being supported in suitable bearings. orstandards, elevated on and above the platform B. A crank m, is attachedto the shaft le, as seen in Fig. l. The frame D. is hinged or so jointedat one end of it to the bed A, as to be capable ot' being turned upwardas shown by dotted lines in Fig. Q. One arm of a bent lever n, extendsunderneath the other end of the frame D. the said lever being made torock in a vertical plane, and Von a fulcrum o, fixed to the bed A. inthe position as seen in Fig. Q. The other arm of the said lever is sobent upward. that after the operation of pressing the sheet materialdown upon the cutters or dies has been performed. it, (the said arm) maybe carried in contact (by the movement of the bed.) with the roller, anda downward pressure roduced upon it, sufficient to depress it. anti)thereby elevate its other arm. and of course the frame D, in Stichmanner as to cause the llifting bars to raise the comb out of the t ies.

In operating with the machine, the plate or sheet of horn is rst laidupon the cutters. and while the lifters are down to their lowestpositions between them. The workman next applies his hand to the crankm, and puts it in motion in such a way, as to cause the sheetmaterialand the cutters. to pass underneath the pressure roller E. and therebyforce the cutters through the sheet. Immediately on completion of thecutting operation, the further movement of the bed A, carriestheelevated arm. of the bent lever n. against the roller E, in suchmanner as to depress the said arm. and roduce the elevation of thelifter bars, an frame, in the manner, and for the purpose, as hereinbefore specied.

2 8,144 est AVAILABLE COPY I do not claim the mere use in a die of .aclearer for forcing out of the die the article produced thereby, but Intestimony whereof. I have hereto set What I do claim as my invention.ismy signature, this twelfth day of Februarv The combination ot' the twoseries ot' lift- I A.. D. 1551. ers and bent lever n. (arranged upon theTHOMAS W. HILL.

'itnesses:

JOEL C. -\LLI::,

traveling carriage A), with thel pressure Jox-:L IV. FLETCHER.

lifters after the combs are cut substantially 10 l as herein before.described.

roller, in such manner that the continued motion ot' the carnage shalloperate theI

